Surgery Book


Obturator Sign

Aka: Obturator Sign, Obturator Test
  1. See Also
    1. Iliopsoas Test
  2. Indications
    1. Appendicitis Evaluation
  3. Technique
    1. Patient lies supine with right thigh flexed 90 degrees
    2. Examiner immobilizes right ankle with right hand
    3. Left hand rotates right hip by:
      1. Pull right knee laterally (hip external rotation)
      2. Pull right knee medially (hip internal rotation)
    4. Left obturator/Pelvis examined in similar fashion
  4. Interpretation
    1. Indicates irritation of obturator Muscle
    2. Suggests pelvic abscess as seen in Appendicitis
  5. Efficacy
    1. Positive Likelihood Ratio (children): 3.5
    2. Negative Likelihood Ratio (children): 0.73
  6. References
    1. Benabbas (2017) Acad Emerg Med 24(5): 523-51 [PubMed]

Obturator sign (C0277978)

Concepts Sign or Symptom (T184)
SnomedCT 6292008
English obturator signs, obturator sign, Obturator sign, Obturator sign (finding)
Spanish signo del obturador (hallazgo), signo del obturador
Derived from the NIH UMLS (Unified Medical Language System)

You are currently viewing the original '\legacy' version of this website. Internet Explorer 8.0 and older will automatically be redirected to this legacy version.

If you are using a modern web browser, you may instead navigate to the newer desktop version of fpnotebook. Another, mobile version is also available which should function on both newer and older web browsers.

Please Contact Me as you run across problems with any of these versions on the website.

Navigation Tree